Novel empirical model for predicting residual flexural capacity of corroded steel reinforced concrete beam

Lu, ZH; Wang, HJ; Qu, F; Zhao, YG; Li, P; Li, W

Novel empirical model for predicting residual flexural capacity of corroded steel reinforced concrete beam

Lu, ZH Wang, HJ Qu, F Zhao, YG Li, P

Li, W

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Publisher:: HIGHER EDUCATION PRESS
Publication Type:: Journal Article
Citation:: Frontiers of Structural and Civil Engineering, 2020, 14, (4), pp. 888-906
Issue Date:: 2020-08-01

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Field	Value	Language
dc.contributor.author	Lu, ZH
dc.contributor.author	Wang, HJ
dc.contributor.author	Qu, F
dc.contributor.author	Zhao, YG
dc.contributor.author	Li, P https://orcid.org/0000-0002-9626-7441
dc.contributor.author	Li, W https://orcid.org/0000-0002-4651-1215
dc.date.accessioned	2021-03-21T00:35:05Z
dc.date.available	2021-03-21T00:35:05Z
dc.date.issued	2020-08-01
dc.identifier.citation	Frontiers of Structural and Civil Engineering, 2020, 14, (4), pp. 888-906
dc.identifier.issn	2095-2430
dc.identifier.issn	2095-2449
dc.identifier.uri	http://hdl.handle.net/10453/147401
dc.description.abstract	© 2020, Higher Education Press. In this study, a total of 177 flexural experimental tests of corroded reinforced concrete (CRC) beams were collected from the published literature. The database of flexural capacity of CRC beam was established by using unified and standardized experimental data. Through this database, the effects of various parameters on the flexural capacity of CRC beams were discussed, including beam width, the effective height of beam section, ratio of strength between longitudinal reinforcement and concrete, concrete compressive strength, and longitudinal reinforcement corrosion ratio. The results indicate that the corrosion of longitudinal reinforcement has the greatest effect on the residual flexural capacity of CRC beams, while other parameters have much less effect. In addition, six available empirical models for calculating the residual flexural strength of CRC beams were also collected and compared with each other based on the established database. It indicates that though five of six existing empirical models underestimate the flexural capacity of CRC beams, there is one model overestimating the flexural capacity. Finally, a newly developed empirical model is proposed to provide accurate and effective predictions in a large range of corrosion ratio for safety assessment of flexural failure of CRC beams confirmed by the comparisons.
dc.language	English
dc.publisher	HIGHER EDUCATION PRESS
dc.relation	http://purl.org/au-research/grants/arc/DE150101751
dc.relation.ispartof	Frontiers of Structural and Civil Engineering
dc.relation.isbasedon	10.1007/s11709-020-0637-0
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0905 Civil Engineering, 1201 Architecture
dc.title	Novel empirical model for predicting residual flexural capacity of corroded steel reinforced concrete beam
dc.type	Journal Article
utslib.citation.volume	14
utslib.for	0905 Civil Engineering
utslib.for	0905 Civil Engineering
utslib.for	1201 Architecture
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	open_access	*
dc.date.updated	2021-03-21T00:35:03Z
pubs.issue	4
pubs.publication-status	Published
pubs.volume	14
utslib.citation.issue	4

Abstract:

© 2020, Higher Education Press. In this study, a total of 177 flexural experimental tests of corroded reinforced concrete (CRC) beams were collected from the published literature. The database of flexural capacity of CRC beam was established by using unified and standardized experimental data. Through this database, the effects of various parameters on the flexural capacity of CRC beams were discussed, including beam width, the effective height of beam section, ratio of strength between longitudinal reinforcement and concrete, concrete compressive strength, and longitudinal reinforcement corrosion ratio. The results indicate that the corrosion of longitudinal reinforcement has the greatest effect on the residual flexural capacity of CRC beams, while other parameters have much less effect. In addition, six available empirical models for calculating the residual flexural strength of CRC beams were also collected and compared with each other based on the established database. It indicates that though five of six existing empirical models underestimate the flexural capacity of CRC beams, there is one model overestimating the flexural capacity. Finally, a newly developed empirical model is proposed to provide accurate and effective predictions in a large range of corrosion ratio for safety assessment of flexural failure of CRC beams confirmed by the comparisons.

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http://hdl.handle.net/10453/147401